CN104147842B - A kind of composite multi-functional filter - Google Patents
A kind of composite multi-functional filter Download PDFInfo
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- CN104147842B CN104147842B CN201410370156.9A CN201410370156A CN104147842B CN 104147842 B CN104147842 B CN 104147842B CN 201410370156 A CN201410370156 A CN 201410370156A CN 104147842 B CN104147842 B CN 104147842B
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- 239000002131 composite material Substances 0.000 title claims abstract description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 64
- 239000004576 sand Substances 0.000 claims abstract description 52
- 238000005192 partition Methods 0.000 claims abstract description 29
- 230000004720 fertilization Effects 0.000 claims abstract description 22
- 238000001914 filtration Methods 0.000 claims abstract description 13
- 239000010865 sewage Substances 0.000 claims description 39
- 239000003638 chemical reducing agent Substances 0.000 claims description 7
- 238000007689 inspection Methods 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000011001 backwashing Methods 0.000 abstract description 7
- 238000004140 cleaning Methods 0.000 abstract description 5
- 238000005273 aeration Methods 0.000 abstract description 4
- 239000003337 fertilizer Substances 0.000 description 12
- 239000012535 impurity Substances 0.000 description 11
- 238000010586 diagram Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 230000001680 brushing effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011010 flushing procedure Methods 0.000 description 2
- 239000004575 stone Substances 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000005097 cold rolling Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002262 irrigation Effects 0.000 description 1
- 238000003973 irrigation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- RSMUVYRMZCOLBH-UHFFFAOYSA-N metsulfuron methyl Chemical compound COC(=O)C1=CC=CC=C1S(=O)(=O)NC(=O)NC1=NC(C)=NC(OC)=N1 RSMUVYRMZCOLBH-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Filtration Of Liquid (AREA)
Abstract
本发明公开了一种复合型多功能过滤装置，属于过滤技术领域。本发明的技术方案要点为：一种复合型多功能过滤装置，罐体的内部从上到下依次由上隔板和下隔板分隔成砂石介质过滤腔、楔形网式过滤腔和清水集水腔，罐体的外侧分别设有上压差开关、下压差开关和控制柜，罐体的底部设有罐体支撑架。本发明结构紧凑，同时具备砂石介质过滤器和刷式自清洗过滤器的优势，占地面积小，水流通畅，水头损失小，自动化程度高，同时可以实现均匀施肥和加气反冲洗，提高了设备的利用效率，减少了附属配套设备，节约成本。
The invention discloses a composite multifunctional filtering device, which belongs to the technical field of filtering. The main points of the technical solution of the present invention are: a composite multifunctional filter device, the inside of the tank body is divided into a sand medium filter chamber, a wedge-shaped mesh filter chamber and a clear water collection chamber by an upper partition and a lower partition in turn from top to bottom. The water cavity and the outside of the tank are respectively provided with an upper differential pressure switch, a lower differential pressure switch and a control cabinet, and a tank support frame is provided at the bottom of the tank. The invention has the advantages of compact structure, sand medium filter and brush self-cleaning filter, small floor area, smooth water flow, small water head loss, high degree of automation, uniform fertilization and aeration backwashing can be realized at the same time, improving Improve the utilization efficiency of the equipment, reduce the ancillary supporting equipment and save the cost.
Description
技术领域 technical field
本发明属于过滤技术领域，具体涉及一种复合型多功能过滤装置。 The invention belongs to the technical field of filtration, and in particular relates to a composite multifunctional filtration device.
背景技术 Background technique
目前，农业灌溉领域上应用的过滤器主要有叠片过滤器、砂石介质过滤器、离心过滤器和网式过滤器等形式，应用时主要采用组合形式过滤，例如砂石介质过滤器配合叠片过滤器，离心过滤器配合叠片过滤器，砂石过滤器配合网式过滤器等。单体过滤器只能够实现单一的过滤功能，组合应用后才能够满足实际过滤需求。但是，组合应用的过滤器组存在许多弊端，过滤级数的增加，必然增加管道连接难度，管件繁杂多样，增加了系统成本，同时增大了设备占用的空间。管件增多，管道增长，水流流道的弯曲，增大了过滤系统的水头损失，使得首部配套水泵功率增加。同时，多级过滤器经过一段时间过滤后，要进行冲洗，级数越多，单独冲洗所消耗的水越多，增加了冲洗频率的同时也造成了大量的水资源浪费，使得设备的使用效率降低。同时，现有的施肥方式主要是在管道内注肥，很多情况下，肥料注入后并不能和水充分混合，造成有的地块施肥多，有的地块施肥少，存在注肥不均的问题。 At present, the filters used in the field of agricultural irrigation mainly include laminated filters, sand media filters, centrifugal filters and mesh filters. Sheet filter, centrifugal filter with laminated filter, sand filter with mesh filter, etc. A single filter can only achieve a single filtering function, and the actual filtering needs can only be met after combined application. However, there are many disadvantages in the filter group used in combination. The increase in the number of filter stages will inevitably increase the difficulty of pipeline connection, and the variety of pipe fittings will increase the cost of the system and increase the space occupied by the equipment. The increase of pipe fittings, the increase of pipes, and the bending of the water flow path increase the head loss of the filtration system, which increases the power of the first matching water pump. At the same time, after a period of time, the multi-stage filter needs to be rinsed. The more stages there are, the more water will be consumed for separate flushing, which increases the frequency of flushing and also causes a lot of waste of water resources, which reduces the efficiency of equipment. . At the same time, the existing fertilization method is mainly to inject fertilizer in the pipeline. In many cases, the fertilizer cannot be fully mixed with water after injection, resulting in some plots with more fertilizer and some plots with less fertilizer, resulting in uneven fertilizer injection. question.
发明内容 Contents of the invention
本发明为克服现有技术的不足而提供了一种将砂石介质过滤器与刷式自清洗过滤器组合起来的复合型多功能过滤装置。 The present invention provides a composite multifunctional filtering device which combines a sand medium filter and a brush type self-cleaning filter in order to overcome the deficiencies of the prior art.
本发明的技术方案为：一种复合型多功能过滤装置，其特征在于：罐体的内部从上到下依次由上隔板和下隔板分隔成砂石介质过滤腔、楔形网式过滤腔和清水集水腔，其中砂石介质过滤腔的上方设有与进水口相连通的布水器，进水口与进水口水动三向阀相连，砂石介质过滤腔的内部通过腔体侧壁上的装砂孔填充有砂石介质过滤层，在砂石介质过滤层的底部设有一层滤帽，该滤帽固定于上隔板的上侧；楔形网式过滤腔位于上隔板与下隔板之间，其中楔形滤网通过楔形滤网固定架固定于上隔板的下侧，在楔形滤网的外侧设有毛刷，该毛刷固定于毛刷固定架上，毛刷固定架的中心固定于螺杆轴上，该螺杆轴的顶部为螺杆，其余部分为光轴，螺杆轴穿过砂石介质过滤腔与罐体顶部的减速机相连，减速机与电机相连，螺杆轴上下运行的极限位置分别由上下两个接近开关控制，螺杆轴的行程与楔形滤网的长度一致，楔形滤网的底部设有吸污装置，该吸污装置由内外两个吸污管组成，吸污管分别与排污管相连，在吸污管上均布有小孔，排污管引出罐体并通过排污口三通阀分别与排污阀和施肥泵或气泵相连，所述的施肥泵与施肥罐相连；清水集水腔设于下隔板的下侧，在清水集水腔的底部设有出水口，与楔形网式过滤腔相对应的罐体侧壁上设有检修孔；罐体的外侧分别设有上压差开关、下压差开关和控制柜，其中上压差开关的一端通过连接管与砂石介质过滤层上方的砂石介质过滤腔相连通，上压差开关的另一端通过连接管与砂石介质过滤层底部的砂石介质过滤腔相连通，所述的下压差开关的一端通过连接管与楔形滤网的内侧相连通，下压差开关的另一端通过连接管与楔形滤网的外侧相连通，所述的控制柜内设有中央控制器和显示屏，该中央控制器分别通过线路与显示屏、上压差开关、下压差开关、接近开关、电机、进水口水动三向阀、排污口三通阀、施肥泵、气泵和排污阀相连，罐体的底部设有罐体支撑架。 The technical solution of the present invention is: a composite multifunctional filter device, characterized in that: the inside of the tank body is divided into a sand medium filter chamber and a wedge-shaped mesh filter chamber by an upper partition and a lower partition in turn from top to bottom. And clear water collection chamber, wherein the top of the sand medium filter chamber is provided with a water distributor connected to the water inlet, the water inlet is connected to the water inlet hydraulic three-way valve, and the inside of the sand medium filter chamber passes through the side wall of the chamber The upper sand hole is filled with a sand media filter layer, and a layer of filter cap is arranged at the bottom of the sand media filter layer, and the filter cap is fixed on the upper side of the upper partition; the wedge-shaped mesh filter chamber is located between the upper partition and the lower partition. Between the partitions, the wedge-shaped filter screen is fixed on the lower side of the upper partition through the wedge-shaped filter screen fixing frame, and a brush is arranged on the outside of the wedge-shaped filter screen, and the brush is fixed on the brush fixing frame, and the brush fixing frame The center of the screw shaft is fixed on the screw shaft. The top of the screw shaft is the screw, and the rest is the optical axis. The screw shaft passes through the sand medium filter cavity and is connected to the reducer on the top of the tank. The reducer is connected to the motor, and the screw shaft runs up and down. The limit position of the filter is controlled by the upper and lower proximity switches respectively. The stroke of the screw shaft is consistent with the length of the wedge-shaped filter. The bottom of the wedge-shaped filter is equipped with a sewage suction device. The pipes are respectively connected with the sewage pipes, and there are small holes evenly distributed on the sewage suction pipes. The sewage pipes are led out of the tank and connected with the sewage valve and the fertilization pump or air pump respectively through the three-way valve of the sewage outlet. The fertilization pump is connected with the fertilization tank. ; The clear water collecting chamber is set on the lower side of the lower partition, the bottom of the clear water collecting chamber is provided with a water outlet, and the side wall of the tank body corresponding to the wedge-shaped mesh filter chamber is provided with an inspection hole; the outer sides of the tank body are respectively It is equipped with an upper differential pressure switch, a lower differential pressure switch and a control cabinet, wherein one end of the upper differential pressure switch is connected with the sand medium filter cavity above the sand medium filter layer through a connecting pipe, and the other end of the upper differential pressure switch is connected through a connection pipe. The tube is connected with the sand medium filter cavity at the bottom of the sand medium filter layer, one end of the lower differential pressure switch is connected with the inner side of the wedge-shaped filter screen through the connecting tube, and the other end of the lower differential pressure switch is connected with the wedge-shaped filter screen through the connecting tube. The outside of the filter screen is connected, and the control cabinet is equipped with a central controller and a display screen, and the central controller is connected to the display screen, the upper differential pressure switch, the lower differential pressure switch, the proximity switch, the motor, and the water inlet respectively through lines. The water-operated three-way valve, the three-way valve at the sewage outlet, the fertilization pump, the air pump and the sewage valve are connected, and the bottom of the tank body is provided with a tank support frame.
本发明结构紧凑，同时具备砂石介质过滤器和刷式自清洗过滤器的优势，占地面积小，水流通畅，水头损失小，自动化程度高，同时可以实现均匀施肥和加气反冲洗，提高了设备的利用效率，减少了附属配套设备，节约成本。 The invention has the advantages of compact structure, sand medium filter and brush self-cleaning filter, small floor area, smooth water flow, small water head loss, high degree of automation, uniform fertilization and aeration backwashing can be realized at the same time, improving Improve the utilization efficiency of the equipment, reduce the ancillary supporting equipment and save the cost.
附图说明 Description of drawings
图1是本发明的外部构造图，图2是本发明的内部结构示意图，图3是本发明吸污管的结构示意图，图4是本发明毛刷固定架的结构示意图，图5是本发明下隔板的结构示意图。 Fig. 1 is an external structural diagram of the present invention, Fig. 2 is a schematic diagram of an internal structure of the present invention, Fig. 3 is a schematic structural diagram of a sewage suction pipe of the present invention, Fig. 4 is a schematic structural diagram of a brush holder of the present invention, and Fig. 5 is a schematic diagram of the present invention Schematic diagram of the structure of the lower partition.
图面说明：1、减速机，2、螺杆轴，3、罐体，4、装砂孔，5、检修孔，6、吸污管，7、下隔板，8、罐体支撑架，9、出水口，10、进水口水动三向阀，11、布水器，12、滤帽，13、上隔板，14、楔形滤网固定架，15、楔形滤网，16、毛刷，17、毛刷固定架，18、排污阀，19、排污口三通阀，20、施肥泵，21、施肥罐，22、接近开关，23、控制柜，24、上压差开关，25、下压差开关。 Drawing description: 1. Reducer, 2. Screw shaft, 3. Tank body, 4. Sand filling hole, 5. Inspection hole, 6. Sewage suction pipe, 7. Lower partition, 8. Tank body support frame, 9 , water outlet, 10, water inlet hydraulic three-way valve, 11, water distributor, 12, filter cap, 13, upper partition, 14, wedge-shaped filter screen fixing frame, 15, wedge-shaped filter screen, 16, brush, 17. Brush fixing frame, 18. Sewage valve, 19. Three-way valve at sewage outlet, 20. Fertilization pump, 21. Fertilization tank, 22. Proximity switch, 23. Control cabinet, 24. Upper differential pressure switch, 25. Lower differential pressure switch.
具体实施方式 Detailed ways
结合附图详细描述实施例。一种复合型多功能过滤装置，罐体3的内部由上到下分为上中下三层，上层为砂石介质过滤腔，中间为楔形网式过滤腔，下部为清水集水腔。 Embodiments are described in detail with reference to the accompanying drawings. A composite multifunctional filtering device, the inside of the tank body 3 is divided into upper, middle and lower layers from top to bottom, the upper layer is a sand medium filter chamber, the middle is a wedge-shaped mesh filter chamber, and the lower part is a clear water collection chamber.
砂石介质过滤腔设置于上隔板13的上层空间，罐体3上部进水口处设有布水器11，将进水尽可能均匀的打散，使含有杂质的水能够均匀的落在砂石介质过滤层的表面，避免因为水流集中冲击砂石介质过滤层，使滤层发生搅动，影响过滤效果，罐体3的侧壁上设有装砂孔4。砂石介质过滤层的底部布置一层滤帽12，主要用于隔离砂石介质过滤层和汇集过滤后的水，滤帽12设置于上隔板13的上侧。滤帽12空隙大小由砂石介质的粒径决定，滤帽12数量要与整个过滤器的过滤流量相配套，过小的话会造成水头损失增大。罐体3的外侧装有上压差开关24，其一端连接砂石介质过滤层上方未过滤水，另一端连接砂石介质过滤层下方过滤后的水，在进行了一段时间过滤后，砂石介质过滤层表面的杂质会使得砂石介质过滤层的上下压差增加，当压差达到上压差开关24的设定值时，开始进行反冲洗。 The sand medium filter cavity is set in the upper space of the upper partition 13, and the water distributor 11 is installed at the upper water inlet of the tank body 3 to disperse the incoming water as evenly as possible, so that the water containing impurities can evenly fall on the sand. The surface of the stone medium filter layer avoids stirring of the filter layer due to the concentrated impact of the water flow on the sand medium filter layer, which affects the filtering effect. The side wall of the tank body 3 is provided with a sand hole 4 . A layer of filter cap 12 is arranged at the bottom of the sand medium filter layer, which is mainly used to isolate the sand medium filter layer and collect filtered water. The filter cap 12 is arranged on the upper side of the upper partition 13 . The size of the gaps in the filter caps 12 is determined by the particle size of the sand medium. The number of filter caps 12 should match the filtration flow rate of the entire filter. If they are too small, the head loss will increase. The outer side of the tank body 3 is equipped with an upper differential pressure switch 24, one end of which is connected to the unfiltered water above the sand medium filter layer, and the other end is connected to the filtered water below the sand medium filter layer. Impurities on the surface of the medium filter layer will increase the pressure difference between the upper and lower sides of the sand medium filter layer, and when the pressure difference reaches the set value of the upper differential pressure switch 24, backwashing will begin.
上隔板13将砂石介质过滤腔和楔形网式过滤腔分开。楔形滤网固定架14用于将楔形滤网15固定在上隔板13的下侧，同时不会造成阻水。以往的刷式自清洗过滤均为由内向外过滤，且刷洗方向为周向刷洗，通过顶部电机和减速机构成动力机构提供动力，并且通过中心转轴旋转，使转轴上的刷子周向运动，对滤网内壁进行刷洗。本发明的楔形滤网15网丝采用不锈钢材料冷轧而成，截面为梯形，缝隙为外窄内宽，过滤方向为由外向内。网丝竖向布置，内壁衬有横向条，对滤网进行紧固。毛刷16固定在毛刷固定架17上，毛刷固定架17中心固定在螺杆轴2上，该螺杆轴2的顶部是螺杆，其余部分为光轴，通过顶部减速机1带动螺杆轴2上下往复直线运动，使毛刷16沿竖直方向刷洗，充分清理网缝内杂质。螺杆轴2上下运行的极限位置，由上下两个接近开关22控制，螺杆轴2的行程与楔形滤网15的长度匹配。 The upper partition 13 separates the sand medium filter cavity and the wedge mesh filter cavity. The wedge-shaped filter screen fixing frame 14 is used to fix the wedge-shaped filter screen 15 on the underside of the upper partition 13 without causing water blocking. The previous brush-type self-cleaning filter is filtered from the inside to the outside, and the brushing direction is circumferential brushing. The power mechanism is composed of the top motor and the reducer to provide power, and the central shaft rotates to make the brush on the shaft move in the circumferential direction. Brush the inner wall of the filter. The wedge-shaped filter screen 15 mesh wire of the present invention is formed by cold rolling of stainless steel material, the cross section is trapezoidal, the slit is narrow outside and wide inside, and the filtering direction is from outside to inside. The mesh wires are arranged vertically, and the inner wall is lined with horizontal strips to fasten the filter mesh. The brush 16 is fixed on the brush holder 17, and the center of the brush holder 17 is fixed on the screw shaft 2. The top of the screw shaft 2 is a screw, and the rest is an optical axis. The top speed reducer 1 drives the screw shaft 2 up and down. The reciprocating linear motion makes the hairbrush 16 scrub along the vertical direction to fully clean up the impurities in the mesh seams. The limit position of the screw shaft 2 running up and down is controlled by two proximity switches 22 up and down, and the stroke of the screw shaft 2 matches the length of the wedge-shaped filter screen 15 .
在楔形滤网15的底部设有吸污装置，该装置由内外两个吸污管6组成，吸污管6上均匀布置小孔。毛刷16将楔形滤网15表面的沉积物刷洗后沉落在该吸污管6表面，当外部排污阀18打开时，排污阀18外部压力为大气压力，而吸污管6表面小孔附近压力较高，由此会产生一种类似于真空负压抽吸的吸力，将小孔附近的杂质吸入管道内，通过排污阀18排出。在排污阀18前装有一个排污口三通阀19，该排污口三通阀19设有三个通道A、B和C，当正常排污时，水流方向为A→B，当切换到C→A时，C口可以连接施肥罐21，利用施肥泵20将肥料注入C口，通过吸污管6小孔将肥料均匀的溶解在水中。以往采用的注肥方式主要是将肥料注入到管道内，这种方式容易造成肥料与水不能充分混合，会造成管道上游出水口施肥较多，下游施肥较少。同时注肥后，还要在管道上增加一级过滤装置。而本装置就可以充分避免以往的弊端，肥料通过小孔均匀施加在水中，并通过楔形滤网15进行过滤。除了作为施肥应用，C口还可以连接气泵，在砂石介质过滤层进行反冲洗时，向C口注入气体，气体混入水中后，从吸污管6表面小孔排出，这样加入的气体较分散，伴随着反冲洗水使砂石介质过滤层小幅度的翻动，砂石颗粒之间充分摩擦，使粘附在表面的杂质脱离，能够避免以往加气反冲洗时，气体不够分散，汇集在一起，在砂石介质过滤层中容易作为一个大气泡从一个通道排出，只有气泡通过的周围砂石会翻动，其它地方无法翻动，造成清洗不净。所以该吸污管6可以同时作为排污、施肥、加气三种用途使用。为了对上隔板13与下隔板7之间的楔形网式过滤腔进行检修维护，与楔形网式过滤腔相对应的罐体3侧壁上设有检修孔5。在楔形网式过滤腔的外侧设有下压差开关25，该下压差开关25的一端通过连接管与楔形滤网15的内侧相连通，下压差开关的另一端通过连接管与楔形滤网15的外侧相连通。 The bottom of the wedge-shaped filter screen 15 is provided with a sewage suction device, which is composed of two sewage suction pipes 6 inside and outside, and the small holes are uniformly arranged on the sewage suction pipe 6 . The brush 16 washes the sediment on the surface of the wedge-shaped filter screen 15 and then sinks on the surface of the sewage suction pipe 6. When the external sewage valve 18 is opened, the external pressure of the sewage valve 18 is atmospheric pressure, and the surface of the sewage suction pipe 6 is near the small hole. The pressure is relatively high, which will generate a suction force similar to vacuum negative pressure suction, which will suck the impurities near the small holes into the pipeline and discharge them through the drain valve 18. A sewage outlet three-way valve 19 is installed in front of the sewage valve 18. The sewage outlet three-way valve 19 is provided with three channels A, B and C. When the sewage is normally discharged, the water flow direction is A→B, and when it is switched to C→A , C port can be connected to fertilization tank 21, utilize fertilization pump 20 to inject fertilizer into C port, fertilizer is evenly dissolved in water by sewage suction pipe 6 apertures. The fertilizer injection method used in the past is mainly to inject fertilizer into the pipeline. This method is likely to cause the fertilizer and water to not be fully mixed, resulting in more fertilization at the upstream outlet of the pipeline and less fertilization downstream. At the same time, after the fertilizer is injected, a first-stage filter device must be added to the pipeline. And this device just can fully avoid the drawback in the past, and fertilizer is evenly applied in water by aperture, and filters by wedge-shaped filter screen 15. In addition to being used as fertilization, the C port can also be connected to an air pump. When the sand media filter layer is backwashed, gas is injected into the C port. After the gas is mixed into the water, it is discharged from the small holes on the surface of the sewage suction pipe 6, so that the added gas is more dispersed. , along with the backwashing water, the sand medium filter layer is turned slightly, and the sand particles are fully rubbed against each other, so that the impurities adhered to the surface are separated, which can prevent the gas from being dispersed enough and gathered together during the backwashing with aeration in the past. , in the sand medium filter layer, it is easy to be discharged from a channel as a large air bubble, only the sand and stone around which the air bubble passes will be turned, and other places cannot be turned, resulting in unclean cleaning. Therefore, the sewage suction pipe 6 can be used as three purposes of sewage discharge, fertilization and aeration at the same time. In order to overhaul and maintain the wedge-shaped filter chamber between the upper partition 13 and the lower partition 7, an inspection hole 5 is provided on the side wall of the tank body 3 corresponding to the wedge-shaped filter chamber. A lower differential pressure switch 25 is provided on the outside of the wedge-shaped filter chamber, one end of the lower differential pressure switch 25 communicates with the inner side of the wedge-shaped filter screen 15 through a connecting pipe, and the other end of the lower differential pressure switch communicates with the wedge-shaped filter screen through a connecting pipe. The outside of the net 15 is connected.
清水集水腔设于下隔板7的下侧，在清水集水腔的底部设有出水口9，罐体3的底部设有罐体支撑架8。所述的控制柜23设置于罐体3的外侧，其内设有中央控制器和显示屏，该中央控制器分别通过线路与显示屏、上压差开关24、下压差开关25、接近开关22、电机、进水口水动三向阀10、排污口三通阀19、施肥泵20、气泵和排污阀18相连。 The clear water collecting chamber is located on the lower side of the lower partition 7, the bottom of the clear water collecting chamber is provided with a water outlet 9, and the bottom of the tank body 3 is provided with a tank support frame 8. Described control cabinet 23 is arranged on the outside of tank body 3, is provided with central controller and display screen in it, and this central controller is connected through line and display screen, upper differential pressure switch 24, lower differential pressure switch 25, proximity switch 22. Motor, water inlet hydraulic three-way valve 10, sewage outlet three-way valve 19, fertilization pump 20, air pump and sewage valve 18 are connected.
实际应用时，采用多个罐体3并联运行的模式使用。这样，当其中一个罐体3需要反冲洗时，切换进水口水动三向阀10改变水流方向，其它罐体3过滤后的干净水用来反冲洗，轮流进行。 In actual application, a mode in which a plurality of tank bodies 3 are operated in parallel is used. In this way, when one of the tanks 3 needs to be backwashed, the water inlet hydraulic three-way valve 10 is switched to change the water flow direction, and the clean water filtered by the other tanks 3 is used for backwashing in turn.
首先，待过滤的水从进水口流入罐体内，经过布水器将水均匀的洒落在砂石介质过滤层的表面，水中的杂质经过砂石介质过滤层过滤，留在滤层内，过滤的水经过布置在上隔板上侧的滤帽，汇流后流入楔形网式过滤腔。上压差开关高压端取自滤层上表面，低压端取自滤层后，当滤层杂质淤积过多，就会增加砂石介质过滤层的水头损失，当砂石介质过滤层前后压差达到上压差开关设定值时，发出开关信号，控制柜就控制进水口水动三向阀改变流向，开始反冲洗过程。水流由外向内流过楔形滤网，上游未过滤掉的细小杂质和砂石介质过滤层撞击产生的砂石微粒，经过高目数楔形滤网的过滤，留在楔形滤网外侧，当积累杂质到一定程度，楔形滤网内外压差增大到下压差开关设定值时，就给控制柜一个信号，中央控制器将电机启动，带动螺杆轴上下直线运动，螺杆轴下端拖动毛刷固定架和毛刷上下往复运动，将楔形滤网表面杂质刷下来，沉积到下隔板上。此时，中央控制器打开排污阀，罐内外产生压力差，在吸污管附近会产生一个抽吸作用，将沉积在吸污管周围的杂质吸进管内，通过排污阀排出罐外。 First, the water to be filtered flows into the tank from the water inlet, and the water is evenly sprinkled on the surface of the sand medium filter layer through the water distributor. The impurities in the water are filtered through the sand medium filter layer and remain in the filter layer. The water passes through the filter cap arranged on the upper side of the upper partition, and flows into the wedge-shaped filter chamber after confluence. The high pressure end of the upper differential pressure switch is taken from the upper surface of the filter layer, and the low pressure end is taken from the back of the filter layer. When the filter layer has too many impurities, it will increase the head loss of the sand medium filter layer. When the pressure difference between the front and back of the sand medium filter layer When the set value of the upper differential pressure switch is reached, a switch signal is sent, and the control cabinet controls the hydraulic three-way valve at the water inlet to change the flow direction and start the backwashing process. The water flows through the wedge-shaped filter from the outside to the inside. The fine impurities not filtered out upstream and the sand and gravel particles produced by the impact of the sand medium filter layer are filtered by the high-mesh wedge-shaped filter and left on the outside of the wedge-shaped filter. When the accumulated impurities To a certain extent, when the pressure difference inside and outside the wedge-shaped filter increases to the set value of the lower pressure difference switch, a signal will be sent to the control cabinet, and the central controller will start the motor, driving the screw shaft to move linearly up and down, and the lower end of the screw shaft will drag the brush The fixed frame and the brush reciprocate up and down to brush off the impurities on the surface of the wedge-shaped filter and deposit them on the lower partition. At this time, the central controller opens the blowdown valve, and there is a pressure difference inside and outside the tank, and a suction effect will be generated near the blowdown pipe to suck the impurities deposited around the blowdown pipe into the pipe, and discharge them out of the tank through the blowdown valve.
当需要施肥时，中央控制器将施肥泵打开，然后打开排污口三通阀，施肥泵扬程要高于罐体内压力水头，这样就可以将肥料吸入罐体内，通过吸污管上的小孔均匀扩散到罐体内，然后通过楔形滤网过滤，从出水口送至田间管道。 When fertilization is required, the central controller will turn on the fertilization pump, and then open the three-way valve at the sewage outlet. Diffuse into the tank, then filter through the wedge-shaped filter, and send it to the field pipeline from the water outlet.
以上显示和描述了本发明的基本原理，主要特征和优点，在不脱离本发明精神和范围的前提下，本发明还有各种变化和改进，这些变化和改进都落入要求保护的本发明的范围。 The basic principles, main features and advantages of the present invention have been shown and described above. On the premise of not departing from the spirit and scope of the present invention, the present invention also has various changes and improvements, and these changes and improvements all fall into the claimed invention. range.
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| CN105126437B (en) * | 2015-10-12 | 2017-01-11 | 中国农业科学院农田灌溉研究所 | Multi-stage composite filtration device |
| CN105501717B (en) * | 2016-02-02 | 2018-09-07 | 惠金波 | Tank bottom automatic blowdown system |
| CN105582725B (en) * | 2016-03-10 | 2018-01-12 | 中国农业科学院农田灌溉研究所 | A kind of floatation type slight irrigation filtration system |
| CN105879484B (en) * | 2016-06-16 | 2019-02-05 | 北京通捷智慧水务股份有限公司 | The vertical automatic integrated filter of sandstone net-type |
| CN105879483B (en) * | 2016-06-16 | 2018-07-03 | 北京通捷智慧水务股份有限公司 | The vertical semi-automatic integrated filter of sandstone net-type |
| CN107297092B (en) * | 2017-07-12 | 2023-02-21 | 中国农业科学院农田灌溉研究所 | Micro-irrigation sand and stone filter with air-entrapping back-flushing function |
| CN110731157A (en) * | 2019-09-09 | 2020-01-31 | 山西资环科技股份有限公司 | Treatment method of intelligent biogas slurry water fertilizer preparation system |
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Application publication date: 20141119 Assignee: Jiangsu dimai Machinery Co., Ltd. Assignor: Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences Contract record no.: 2019320000070 Denomination of invention: Combined multifunctional filtering device Granted publication date: 20150826 License type: Exclusive License Record date: 20190322 |
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Effective date of registration: 20190705 Address after: 223800 Suqian Sucheng Economic Development Zone, Jiangsu Province Patentee after: Jiangsu dimai Machinery Co., Ltd. Address before: 453002 Hongli Avenue (East) 380, Makino District, Xinxiang, Henan. Patentee before: Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences |